/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package servlet.ajax;

import classes.*;
import logic.Main;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Shelling Ford
 */
@WebServlet(name="receive", urlPatterns={"/ajax/receive"})
public class receive extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        HttpSession session = request.getSession(true);

        response.setContentType("text/xml;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet receive</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet receive at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
            */
            ArrayList<Message> mList = new ArrayList<Message>();
            mList = Main.getMessage((User)session.getAttribute("user"));
            if (!mList.isEmpty()) {
                out.println("<?xml version=\"1.0\"?>");
                out.println("<root>");
                for (int i=0;i<mList.size();i++) {
                    out.println("<message>");
                    if (mList.get(i).recepientRoom != null) {
                        out.println("<type>room</type>");
                        out.println("<name>"+mList.get(i).recepientRoom.name+"</name>");
                    }
                    else {
                        out.println("<type>user</type>");
                        out.println("<name>"+mList.get(i).sender.username+"</name>");
                    }
                    out.println("<content>"+mList.get(i).sender.username+" : "+mList.get(i).content+"</content>");
                    out.println("</message>");
                }
                out.println("</root>");
            }
        } finally { 
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
